<section id = "api_View-ifExists" data-view = "true" data-view-title = "View.ifExists(id)">
	<header>
		<a class = "nav-back" data-view-rel = ":back"></a>
		<span>View.ifExists(id)</span>
		<a class = "menu"></a>
	</header>
	<div class = "body">
		<div class = "api-name">View.ifExists(id)</div>
		<div class = "api-usage">判断指定ID的视图是否存在。</div>
		<div class = "api-params"><ol>
			<li>id - {String} 视图编号（或视图ID）</li>
		</ol></div>
		<div class = "api-returns">{Boolean} - 视图是否存在。true：视图存在；false：视图不存在</div>
	</div>
	<footer><div class = "btn next">下一节</div></footer>
</section>